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197167-72-9

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197167-72-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 197167-72-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,7,1,6 and 7 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 197167-72:
(8*1)+(7*9)+(6*7)+(5*1)+(4*6)+(3*7)+(2*7)+(1*2)=179
179 % 10 = 9
So 197167-72-9 is a valid CAS Registry Number.

197167-72-9Relevant articles and documents

Carbamate derived stable precursors for generating chiral azomethine ylids under mild conditions.

Alker, David,Harwood, Laurence M.,Williams, C. Eleri

, p. 12671 - 12678 (2007/10/03)

We describe the evolution of stable azomethine ylid precursors which avoid the need for an aldehyde in the ylid generation step. tert-Butyl carbamate derivative (16) demonstrates comparable efficiency to the standard method of ylid generation and trapping, but permits use of milder conditions.

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